Harsh drilling conditions can exceed the capabilities of traditional drill string connections. As the petroleum industry moves toward more severe drilling applications - deepwater, extended reach, high-angle, short-radius and ultra-deep wells - new drill string connection designs are required to safely and efficiently achieve the drilling objectives of these projects. This paper describes three new rotary shoulder connections that provide significant operational advantages for extreme drilling applications.

Keywords:
rotary shoulder connection, upstream oil & gas, makeup torque, strength, configuration, torsional strength, drillstring design, torsional capacity, tool joint, drill stem
Subjects:
Drillstring Design, Drilling Operations, Drill pipe selection
Copyright 2000, IADC/SPE Asia Pacific Drilling Technology
You can access this article if you purchase or spend a download.